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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-19 17:32:11 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:08 +0200
commitdf260e21e6cd5d2dfc1fe9b6a3bbf747e72b3bed (patch)
tree8731b85570ffef662667b01e33769f9d9d2c2baa /arch/x86/ia32
parent806cbae1228cc1a19b978c4513f6851e9ab7f388 (diff)
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
Using the ksys_truncate() wrapper allows us to get rid of in-kernel calls to the sys_truncate() syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_truncate(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'arch/x86/ia32')
-rw-r--r--arch/x86/ia32/sys_ia32.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 0c5f8932c136..90e7a2b3dc5b 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -55,7 +55,8 @@
COMPAT_SYSCALL_DEFINE3(x86_truncate64, const char __user *, filename,
unsigned long, offset_low, unsigned long, offset_high)
{
- return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
+ return ksys_truncate(filename,
+ ((loff_t) offset_high << 32) | offset_low);
}
COMPAT_SYSCALL_DEFINE3(x86_ftruncate64, unsigned int, fd,